[Too Many Projects]

On the 7,000 gvw trailer, ask if You can get it with load range D tires. They usually come with C's and they barely meet the gvw at 1,750 lbs load rating each. I run load range D on my 7k trailer at 2,200 lbs capacity. This gives you some leeway on weight and a cooler running tire. When loaded with a 3,600 lb car they are more stable against side wind and sway than the C's too.